Type-writing machine.



No. 629,233. I Patented Iuly I8, I899.

TYPE WRITING MACHINE.

. (Application fllsd June 4, 1897 (No Model.) 4 Sheets-Sheet l.

WM Z M ra/v7 m: mama rmns co. PHGTDUI'HO- WASHINGTON. n. c.

' No. 529,233. Patented luly I8, I899.

H. BUBG.

TYPE WRITING MACHINE.

(Application filed June 4; 1897. (No Model. 4 sums-shut z.

m: mums vzveas no. FROYUJJYHUW WASFUNGYON, a c.

No. 629,233. Patented July 18, I899.

H. BUBG.

TYPE WRITING MACHINE.

\Application 519d June 4, 1.897.:

(In Model.) 4 Sheets-Sheet 3 Patented July {8 I899.

H. BURG.

TYPE WRITING MACHiNE.

' (Applicaticm filed June 4, 1897.-

(No mam 4 Sheets-Shaet 4,

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UNITED STATES P TENT 6Fi ic"e-.

uUnnR'r none, or MoLLKIR'on, GERMANY.

rYPE-wm'rm'o MACHINE;

srsorrroefrion forming part of Iietter's Patent No. 29,233, dated July18, 1899. Application filed June 4, 1897. gerial No. 639,439. (Nomodel.)

jeot of the German Emperor, residing at Mollkirch,nearRosheim ,in theProvince of Alsace- Lorraine, Germany, have invented certain new anduseful Improvements in Type-Writ in gMachines, of which the following isa specification.

My invention relates to improvements in type-writing machinesin whichthe types are provided on the surface of a cylinder to be shifted,rotated, and forced against the paper by the depression of keys; and theobject of my invention is to reduce the number of keys of the keyboardto a practical minimum in order to simplify the learning with andoperating of the machine and to make it serviceable to the blind. Iattain these objects by the means illustrated in'the accompanyingdrawings, in which I Figure lis a front view, and Fig. 2 a top view, ofthe machine Fig. 3, a vertical section through line as 00 of Fig. 2 Fig.4, a top view corresponding to Fig. 2, the top plate, with the keyboard,being removed; Fig. 5, another vertical section through lines z z ofFig. 2 or Fig. 4, and Fig. 6 a left-hand end view of Figs. 7 and 8 areviews of a modification of my invention herei'u'afterfully described. I

Similar numerals refer to similar parts throughout the several views.

Before referring to the drawings it may be briefly explained in whichmanner a suflieie nt nu mberof types are controlled bya small num ber ofkeys. To this purpose the keyboard consists of two sections, one foreach hand,

and each section contains four or five, keys,

one for each finger, one and the same key be longing to one and the samefinger, so that the hands and fingers are stationaryin operating themachine. For printing a certain type two fingers, one of the left handand the other of the right hand, are simultaneously to be depressed.Thus by the combined action of the fingers of both hands by twostwenty-five difierent types can be printed, as hereinafter fullyexplained. These twentyfive types form a longitudinal section of thesurface of the type-cylinder, which contains a plurality of suchsections-three, for instance-and by means of a shifting key each of thesaid sections can be brought in to print ing position, the same key ofthe keyboard then controlling again the twenty-five types of the shiftedsection. By these means seventy-iive diderent typesare controlled byeight or ten keys. However, it will be ob-, vious that the number of thesaid sections may be increased to four or five and one hundred or onehundred and twenty-five different types printed by the small number ofeight or ten keys. In order to increase the work of the machine or toenable the same to print simultaneously common types and characters forthe blind, the number of the printing parts may be dup'licated,asrepresented in the drawings, the other parts being indifferently thesame in a simplex or in a duplex machine.

Referring now to the drawings, the frame of the machine consists of twoside walls 1 1,

a top plate 2, and an upper guide-plate 3, carrying the keys 4 5 6 7 and8 9 10 11, respectively, and abottom plate 12, supporting thepaper-carriages 13 14 and the platens 15 16. The type-cylinders 17 18project from both sides of the side walls 1 1, between which themechanism for rotating,shipping,and depressing the cylinders isprovided. The latter are fixed to the ends of a shaft 19, to be shiftedand rotated in bearings of a rocking leverframe 20 21, which is mountedon a shaft 22, journaled in the side frames 1 1. Another rocking frame23 2a is loosely mounted on shaft 22 by means of a sleeve 25, andlikewise loosely mounted thereon by means of a sleeve 28 is a lever 27,carrying on its free end a toothed segment 26. Frame 20 21 and lever 27are pressed upward by the springs 29 and 30, coiled on shaft 22 andsleeve 28, respectively. Frame 23 24 bears against lever 27 by means ofa pawl 31, pivoted to the outside of the frame-lever 23, and istherefore likewise supported by spring 30. A hook-shaped pawl 32 ispivoted to the frame-lever 23, the upper projection of the pawl bearingon one side against a pin 33 of lever 23 and on the other side againsta'stop-pin 34, projecting downward from plate 2, ,thus stopping therising movement of lever 27 and of frame-23 24. A two-armed cam-lever 3536, pivoted to the'frame-lever 23, bears against lever 27 with the camportion 35, the upper arm 36 being connected to a rod 37 (partiall ybroken away in the drawings) and by means of this rod connected to alever 38, mounted on a shaft 39, which is journaled in hearings on theupper side of plate 2. Another 1ever40 is mounted on shaft 39 within thereach of the right-hand thumb and serves for turning lever 36, so as toswing downward lever 27. According to the measure of this turningmovement pawl 31, actuated by a spring 41, is thereby slipped beyond thesteps 42 or 43 on the inside of the segment 26, and when releasingthumb-lever 4O lever 27 rises again, but is stopped by step 42 or 43. Inorder to disengage pawl 31 from step 42 or 43, a thumbpiece 44, Figs. 1and 2, is provided within the reach of the left-hand thumb, projectingfrom a slide 45, which is guided on plate 2 and reaches, with a lateralprojection 46, beyond an upper arm 47 of'pawl 31, projecting through aslot of plate 2. Slide is actuated toward the right hand of Fig. 2 by aspring 48, so as to be generally kept out of engagement with arm 47;butwhen the thumbpiece 44 is actuated arm 47 is pressed toward the left,so as to disengage pawl 31 from step 42 or 43, and lever 27 swings backinto its normal position with reference to frame 23 24, as shown in thedrawings.

The rocking movement of lever 27 is imparted to a pinion 49, fixed tothe type-cylinder shaft 19 and engaging with the toothed segment 26 oflever 27. By these means the type-cylinders 17 18 are accordinglyrotated.

Supposing now, for instance, fifteen longitudinal rows of types beprovided on the surface of the type-cylinder, each rowcontaining fivetypes, and designating the lowermost row in the drawings'. 6., theprinting row as the first row, it will be clear that the first row is inprinting position when pawl 31 bears against lever 27 and that the sixthand eleventh rows are brought into printing position when pawl 31engages with step 42 and 43, respectively,every five consecutivelongitudinal rows of types forming one of the above-men- 1 tionedsectionsviz., rows one to five the first, rows six to ten the second,and rows eleven to fifteen the third section. The type-cyli-nder, havingbeen shifted to one of the said sections by actuating thumb-piece 40,must further be adjusted to keep five different positions, so as tobring the several rows of each section into printing condition. Thefirst position is immediately given by shifting the severalsections asdescribed, while the four remaining positions are afforded by actuatingthe keys 8 9 1O 11 of the right-hand keyboard-section. Keys 8 to 11 areguided in slots of plates 2 and 3 and kept in raised position by coiledsprings 50, bearing against shoulders of the reduced portions of thekey-stems, the upward movement of springs 50 being limited by plate 3.The key-stems are recessed at their lower ends, showing two steps 51 and52, and frame 23 24 is provided with crosspins 53 underneath the steps51. Thus each key when depressed takes along with the rocking frame 2324 and likewise lever 27 by means of pawl 31, while the lever-frame 2O21, which carries the type-cylinders, is caught against movement by acatch 55, loosely mounted on the connecting-rod 54 and extending througha slot or plate 2, connecting the frame to that. plate. by means ofthetoothed segment 26 will impart a turning movement to shaft 19, and asthe keys have different distances from rocking shaft 22 lever 27 willperform different strokes by depressing the several keys, although thelatter are to be uniformly depressed. Thus by conveniently distancingthe several parts with reference to the rocking shaft 22 the keys 8 9 1011 will control the second, third, fourth, and fifth row of eachtype-section, respectively, so as to bring the same into printingposition opposite to the platen.

In order to intercept the momentum of the swinging lever 27 and thetype-cylinders, which otherwise would disconnect lever 27 from frame 2324, thus prejudicing the exact adjustment of the type-cylinders andaffording a slurry print, the above-mentioned hookshaped pawl 32 isprovided, which being instantaneously released from pin 34 as frame 2324 begins to descend is forced by aspring 56 against a piece 60, fixedto the toothed segment,26, and caused to engage with one of the steps 5758 59, provided on its edge, thus firmly connecting lever 27 to frame 2324 in accordance with the adjusted type-sections of the type-cylinders.By means of pin34 pawl 32 is disconnected from piece 60 in the raisedposition of frame 2-3 24, thus allowing of a free movement of lever 27for adjusting the type-sections, as described. Lever 27 and frame 23 24being firmly connected to each other when performing their swingingmovement, so as to prevent any inconvenience arising otherwise from thedisconnection of the said parts, it might be desirable for the samepurpose to connect the same with thekeys, as represented in Fig. 3 withreference to key 11. A hook-shaped pawl 11 is pivoted to key 11 and aprojection 12 provided at its upper end, so as to bear against plate 2when the key is in its raised position, as shown, and release thecorrespon ding cross-pin 53 of frame 23 24 from the hook 11, thusallowingof a downward-swinging movement of the said frame by depressingany one of the other keys; but as soon as key 11 is depressed projection12 is deprived of its abutment, and the hook by the pressure of a spring14, intercepting cross pin 53, firmly connects the entire swingingsystem to the key. As soon asby depressing a key the corresponding rowof types is adjusted in printing position catch 55 is instantaneouslyreleased and frame 20 21 taken Lever 27 therefore along with whenfurther depressing the key ceases I v .walls 1. 1, provided with lateralprojecting pins 62 underneath the steps 52 of the key.-' stems, the freeend 63 of the said lever engaging with a pin 64 of catch 55.When'depressing a key, first the adjusting movement of thetype-cylinders takes place, and then lever 61 istaken along with as soonas step 52 of the key-stem reaches the corresponding pin 62 underneaththat stepthat is to say,

immediately before the corresponding row of types of the type-cylindersreaches its printing position. In the same time lever end 63, actuatingpin 64 of catch 55, will disconnect the catch and frame 23 24 from plate2 and strike a collar 66, provided on connecting-rod 54. 'The severalcoacting parts are calculated and distanced in such manner that leverend 63 strikes collar 66 just the same momentas the adjusting of thetype-cylinders is finished. In consequence thereof when furtherdepressing the key no further turning movement of the type-cylindertakes place, as the entire system consisting of the parts 20 21 27 23 2461 then forms an integral system, swinging integrally against theplatens to reach the same and perform the printing. In order to make thesaid integral system a rigid system within the swinging period, so astoeliminate any irregularity possibly arising from the uncontrolledconnection between lever 61' and frame .20 21, there is no difficulty toprovide a catch at the end 63 of lever 61, coactingin the same mannerwith connecting-rod 54 as catch 11 with the corresponding cross-pin 53.The said modification has not been represented, as it will be clear fromthe drawings and description with respect to catch 11' and its wprking.The types provided in longitudinal rows on the surface of eachtype-cylinder form in the same time five circular sections, asrepresented in the drawings. In order to print a certain type, thecylinder besides being turned musttherefore be longitudinally shifted.This is efiected by the keys 4 5 6 7 of the left-hand section of thekeyboard, one of which keys (key 4) heingshown depressed, and thetypecylinders shifted in correspondence therewith to the largest extent.Two disks 67 68 are mounted on the type-cylinder shaft 19, and pin 69 ofa lever 71, mounted on a shaft 70, enters the space between the saiddisks. Thus by rocking shaft 70, as hereinafter described, thetype-cylinders will be longitudinally shifted and allowed of swingingtoward the platens without leaving their position ad'- justed by theshifting movement.

Shaft 70 is journaled in bearings underneath plate 2 and rigidlyconnected to a series of levers 72, belonging each to one of thekeys4567. The latter are guided in the plates2 and 3 and controlled bycoiled springs 74, as described with reference to keys 8 9 10 11. Thestems of keys 4'5 6 7 are. recessed at at their lower ends, Fig. 6, andlevers 72, provided with small rollers 7.3, enter the "said recesseswhen the keys are depressed.

By these means when depressing a key a rocking movement is imparted toshaft 70 and the extent of this movement in the same. time stopped bythe roller 73 coacting with the corresponding edge of the recess, asclearly shown in Fig. 6. .In order to exactly limit the rocking movementcorresponding to each key, abut inents 76 are provided underneath plate2 in the path of ,each key-stem, the oblique edges of which formabntments to bear against the tapered ends of the stems when a key hasbeen depressed, as represented in Fig. 6 with respect to key 4. A coiledspring 77, Fig. 4, presses the lever 71 and the typecylindershaft 19tothe left of Fig. 6, so as to keep the firsti. 6., the outmostright-handtype-section in printing position if no key is depressed. Theshifting of the second, third, fourth, and fifth sections is thenperformed by depressing the keys 5 6 7 4, respectively. In. order toexactly control the turning and shifting adjustment of thetype-cylinders, the well-known correcting-wheel19 on shaft 19 and acorrecting-plate 2O of the base-plate 12 is made use of. Before thecylinders reach the platens the upper edge of plate 20 enters theopposite notch of wheel 19, thus controlling the turning adjustmentimmediately before the printing is performed, and as the edge of plate20 is provided with'notches ,wheel 81 and two gear-wheels 82 83, thelatter engaging with racks 86 87 of the carriages 13 14, which areguided on rails 88 89 of the bottom plate 12. Shaft SOis driven,asindicated by arrow 85, Fig. 3, by means of a clockspring provided in aspring-box S4. A horizontal rocking shaft 90 extends between thebearings 78 79, carrying a lever 91 and a twoarrned ratchet-lever 92 93,and is actuated by a spring 94. Lever 91 lies in the path of frame-lever20, and when actuated by the rocking of frame 20 21 ratchet-wheel 81will be rotated step by step in thewell-known manner and the carriagesaccordingly shifted.

IIO.

The hook-shaped part 95 of lever 93 is con,-

nected thereto by a spring-piece93 in order to allow of passingof theratchet-teeth of wheel 81 underneath hook 95 as the carriages areshifted by hand to their initial position.

An inking device is represented, Figs. 1 and 2, in connection with oneof the two typecylinders. Reels 96 97, provided with sleeves 98 99, arelooselymounted on pins 100 101, laterally projecting from the sidewallsl 1, and ratchet-wheels 102-103, fixed to the other ends of thesaid sleeves. Theink-ribbon 104 passes from reel 96 to reel 97 and isguided on a jacket 105, fixed to the side wall and partially surroundingthe type-cylinder 17. The jacket is open at the bottom for the passageof the type-cylinder, and when the latter swings toward the platen theprinting is performed by the medium of the ribbon part 106. Theink-ribbon is shifted by a lever 107, mounted on the outer end ofrocking shaft 22 by means two pawls 108 109, pivoted to lever 107 andengaging with the ratchetwheels 102 103, respectively. The pawls bearagainst two eccentrics 111 112 on a pin journaled in the side wall 1 andadjustable by a handle 110, and the eccentrics are in such relativeposition to each other that by conveniently turning the handle 110 pawls108 and 109 can be alternately engaged with ratchet-wheels 102 and 103,respectively, or disengaged therefrom.

The word-spacing is performed by a key 113, Figs. 1, 2, and 4, mountedon the outer end of the shaft t1 of lever 61. By depressing key 113lever 61 is actuated and takes along with frame 20 21, as heretoforeexplained, and likewise frame 23 24 is taken along with by the medium ofthe cross-pins 53, against which the descending lever 61 strikes. Inconsequence thereof the lever and frame system is integrally rocked, noturning movement of the cylinders taking place. In order to preventhereby the printing of a type, as required, for the word-space, thecorresponding parts of the type-cylinder surfaces are left without typesand depressed with respect to the proper printing-surface. Theink-ribbon therefore cannot reach. the paper, and the latter is leftblank. It will be obvious that key 113 is likewise to be actuated by theright hand whenever types of the several first longitudinal rows of thelongitudinal type-sections are tobe printed.

The second (rear side) printing device may likewise be provided with anink-ribbon or left without any inking apparatus if it shall be utilizedfor producing raised characters for the blind by means of apunching-cylinder, as well known.

Although the machine is represented in the drawings in connection withtwo printing devices, there will obviously be no difficulty to restrictthe same to but one without departing from the invention. It willlikewise be obvious that the shifting device for shifting the severallongitudinal sections can be restricted to but two sections or extendedto more than three sections without any departure from the invention.

If in the case of providing two printing devices, one for common typesand the other for characters for the blind, it should be desirable tohave the latter highly raised, I prefer the modification of theinvention represented in Fig. 7, part of the front View, and Fig. 8,full side view, in which the type or printing cylinders performdifferent strokes, as appearing from Fig.8. In this modification theonly difference consists in that the lever-frame 20 21 of Fig. 3, whichcarries the type-cylinders,

is modified to form a swinging box 114, Fig. 7, front View, while allthe other parts admit of no change. In the said box are provided theunchanged former parts 22, 23, and 24, 26 and 27, 61 and 61 asrepresented, and likewise the parts 70, 71, and 72 and keys 4 5 6 7 8 91O 11, not represented in the drawings, as they are of no importance toexplain the modification. The working of the said parts is likewise thesame as heretofore described. Shaft 19, with the type-cylinders and theothers parts supported by that shaft, and catch 55 are likewisejournaled in box 114,, the latter, as stated before, supplying the placeof former swinging frame 20 21. Box lltis supported by lateral arms 115,mounted on a rocking shaft 117, which extends be tween uprights 116,secured to the base-plate 12, and is kept in its raised position by acoiled spring 118, its upward swinging movement being controlled by pins119 of the uprights and pins 120 of the arms 115, bearing against pins119. A post 121 is secured to base-plate 12, extending throughout box114, and, passing through a slot in its cover-plate and box 114, iscaught in its raised position by catch 55, intercepting the upper edgeof the said post. As soon as the catch is released by depressing one ofkeys 8 9 10 11 or key 113, as heretofore described, box 114 is swungtoward the platens, the right-handcylinder of Fig. 8 thereby obviouslyperforming a larger stroke than the left-hand cylinder. If, therefore,the former contains the characters for the blind and the latter commontypes, it will be clear that without derogating from the quality of thecommon letters highlyraised characters for the blind are to be obtained.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In a type-writing machine, in which the types arearranged on the surface of a swinging cylinder, the combination of twosets of keys, one set for shifting, and the other for rotating thetype-cylinder, a swinging arm or frame to be struck by the rotatingkeys, a support for the type-cylinder pivoted to the rock-shaft of thesaid arm or frame, an ad justable segment likewise pivoted to the saidrock-shaft and engaging with a pinion on the type-cylinder shaft, a pawlpivoted to the swinging arm or frame and engaging with ratchet-teeth ofthe segment, and means for disengaging the pawl, substantially as andfor the purposes described.

2. In a type-writing machine, in which the types are arranged on thesurface of a swinging cylinder, the combination of two sets of keys, oneset for shifting and the other for rotating the type-cylinder, aswinging arm or frame to be struck by the rotating keys, a support forthe type-cylinder pivoted to the rock-shaft of the said arm or frame, anadjustable segment likewise pivoted to the said rock-shaft and engagingwith a pinion on the type-cylinder shaft, a cam-lever pivoted to I typesare arranged on the surface of a swing-- the swinging arm or frame andstriking the arm of the segment, and means foractuatingr the cam lever,substantially purposes described.

3. In a type-writing machine, in which the as and for the ing cylinder,the combination of two setsof keys, one set for shifting and the otherfor rotating the type-cylinder, a swinging arm or frame to be struck bythe rotating keys,a

support for the typecylinder pivoted tothe rock-shaft of the saidarm orframe, an adjustable segment likewise pivoted to the said rock-shaft andengaging with a pinion on the type-cylinder shaft, a pawl pivoted to theswinging arm or frame and engaging with ratchet-teeth of the segment, acam-lever likewise pivoted to the swinging arm or frame and striking thearm of the segment, means for disengaging the pawl, and means foractuating the cam-lever, substantially as and for the purposesdescribed."

4:. In a type-writing-machine, in which the types are arranged on thesurface of a swinging cylinder, the combination of two sets of keys, oneset for shifting and the other for rotating the type-cylinder, aswinging arm or frame to be struck by the rotating keys, a

support for the type-cylinder pivoted to the rock-shaft of the said armor frame, an adjustable segment likewise pivoted to the said rock-shaftand engaging with a pinion on the type-cylinder shaft, a pawl pivoted tothe swinging arm or frame and engaging with a set of ratchet-teeth ofthe segment, a catch pivoted to the swinging arm or frame toengage withanother set of ratchet-teeth of the segment and to intercept itsmomentum,'and means for disengaging -the said pawl and the said catch,substantially as and for the purposes described.

.5; In a type-writing machine, in which the types are arranged on thesurface of a swinging cylinder, thecombination of a swinging framecarrying the type-cylinder shaft, two sets of keys, one for shifting andthe other for rotating the type cylinder, means for shifting androtating the type-cylinder by simultaneously depressing a shifting and a1'0- tating key, a catch connecting the type-cylinder frame to astationary part of the machine, and means for releasing the catch by thekey stroke, substantially as and for the purposes described. v

6. In a type-Writing machine, in which the types are arranged on thesurface of a swinging cylinder, the combination of a swinging framecarrying the type-cylinder shaft, two sets of keys,one set for shifting,and the other for rotating the type-cylinder, means for shifting androtating the type-cylinder by simultaneously depressing a shifting and arotating key, a catch connecting the typecylinder frame to a stationarypart of the machine, means for releasing the catch by the 1 key stroke,and means for swinging the typecylinder 'frame'by the key stroke,substan tially'as and'for the purposes described.

7. In a type-writing machine, in which the types are. arranged on thesurface of a swinging cylinder, the combination of a swinging framecarrying the type-cylinder shaft, two sets of keys, one set forshiftingand the other .for rotating the type-cylinder, means forshifting and rotating the type-cylinder by simultaneously depressing ashifting and arotating key, a catch connecting the type-cylinder frameto a stationary part of the machine, a swinging lever actuated by thekey stroke, releasing the said catch and striking the type-cylinderframe, a catch pivoted to the swinging lever to engage with thetypecylinder frame and to intercept its momentum, and means forreleasing the said catches, substantially as and for the purposesdescribed. r

8. In a type-writing machine, in which the types are arranged on thesurface of aswinging cylinder, the combination of a swinging framecarrying the type-cylinder shaft, two sets of keys, one set forshifting, and the other for rotating the type-cylinder, means forshifting and rotating the type-cylinder by simultaneously depressing ashifting and a rotating key, a catch connecting the type-cylinder frameto a stationary part of the machine,'a swinging lever actuated by thekey stroke, releasing the said catch and striking the type-cylinderframe, a catch pivoted to the swinging lever to engage with thetype-cylinder frame and to intercept its momentum, catches pivoted tothe keys to engage with the said swinging lever to intercept themomentum of the entire swinging system, and means for releasing the saidcatches, substantially as and for the purposes described.

9. In a type-Writing machine, in which the types are arranged on thesurface of a swinging cylinder, the combination of two sets of keys, oneset for shifting, and the other for rotating the type-cylinder shaft,means for shifting, rotating and swinging the type-cyL inder bysimultaneously depressing a shifting and a rotating key, a swinging armor frame to be struck by the rotating keys, a swinging segment engagingwith the said arm or frame and with a pinion on the type-cylinder shaft,another swinging frame carrying the type-cylinder shaft,means forconnectingtoeach other the swinging parts in their swinging movement,and means for disengaging the said connections, substantially as and forthe purposes described.

10. In 'a type-writing machine, in which the types are arranged on thesurface of a swinging cylinder, the combination of two sets of keys, oneset for shifting, and the other for rotating the type-cylinder, arocking shaft provided with fixed levers to be actuated by the shiftingkeys, recesses provided at the under side of the shifting keys, and pinsor rollers secured to the rocking levers and fitting in the saidrecesses, substantially as and for the purposes described.

11. In a type-writing machine, in which the types are arranged on thesurface of a swinging cylinder, the combination of two sets of keys, oneset for shifting, and the other for rotating the type-cylinder, arocking shaft provided with levers to be actuated by the shifting-keys,recesses provided at the under side of the shifting-keys, pins orrollers secured to the rocking levers and fitting in the said recesses,and abutments to bear against the tapered ends of the keys,substantially as and for the purposes described;

12. In a type-writing machine the combination of a swinging framecarrying a pair of type-cylinders mounted on the same shaft, two sets ofkeys, one set for shifting, and the other for rotating thetype-cylinders, a swinging armor frame to be struck by the rotatingkeys, a support for the type-cylinder pivoted to the rock-shaft of thesaid arm or frame, an adjustable segment likewise pivoted to therock-shaft and engaging with the pinion on the type-cylinder shaft,means for adjusting the segment With respect to the said swinging arm orframe, and means for simultaneously shifting, rotating and swinging thetype-cylinders, substantially as and for the purposes described.

13. A type-Writing machine, consisting of a swinging frame mounted on arocking shaft.

at the rear of the frame, a type-cylinder shaft journaled in the frontend of the swinging frame and crossing the direction of the rockingshaft, a pair of type-cylinders mounted on the type-cylinder shaft, twoset of keys provided at the top of the swinging frame, one set forshifting, and the other for rotating the type-cylinders, and means forshifting

